MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b5ac541a4baee69325c9f73ba6fe8e93d74fe3c302708373fab4fc0a55e3745b. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
MassLogger
Vendor detections: 11
| SHA256 hash: | b5ac541a4baee69325c9f73ba6fe8e93d74fe3c302708373fab4fc0a55e3745b |
|---|---|
| SHA3-384 hash: | bc93471a20fcef096cb1456d6d046f2177468f291a9dad04626949f144b4e8b82da42d8e67d495234230bd7cbefdc34c |
| SHA1 hash: | 5fc3105a3a5346b76dd879f4af88d275376207c0 |
| MD5 hash: | f71192136c55245729661eb552eaaf37 |
| humanhash: | sink-ink-edward-carolina |
| File name: | Rmittance Advice 017700 9001.exe |
| Download: | download sample |
| Signature | MassLogger |
| File size: | 1'013'248 bytes |
| First seen: | 2020-12-05 15:25:18 UTC |
| Last seen: | 2020-12-05 16:41:55 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 24576:6h3BbOWnDoM/9I3oNwbityIk4wpJMwf6MWcZAl:03xnDX6Gwb2y14Me46w4 |
| Threatray | 577 similar samples on MalwareBazaar |
| TLSH | A32512322225FFA9EA7A4FF4A56426441FB525339A71F35CBD8610CE30A3B40AE45D73 |
| Reporter |  abuse_ch |
| Tags: | exe MassLogger |
abuse_ch
Malspam distributing MassLogger:HELO: vm1621512.nvme.had.ytbanabiosa.com
Sending IP: 185.244.216.74
From: impexland@banabiosa.com
Subject: Payment For Outstanding Invoices
Attachment: Rmittance Advice 017700 9001 PDF.R01 (contains "Rmittance Advice 017700 9001.exe")
MassLogger SMTP exfil server:
mail.privateemail.com:587
Intelligence
File Origin
# of uploads :
2
# of downloads :
364
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Rmittance Advice 017700 9001.exe
Verdict:
Malicious activity
Analysis date:
2020-12-07 08:38:12 UTC
Tags:
trojan stealer masslogger evasion
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
MassLogger
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Setting a global event handler for the keyboard
Result
Gathering data
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AntiVM_3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Status:
Malicious
First seen:
2020-12-05 09:38:48 UTC
AV detection:
26 of 28 (92.86%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
masslogger
Similar samples:
+ 567 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Score:
10/10
Tags:
family:masslogger spyware stealer
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
c88a66cbf00b12c88e2b970b8bc220e970e8465e56098ced24e97d42be901b94
MD5 hash:
a60401dc02ff4f3250a749965097e13f
SHA1 hash:
3f22d28fd765f831084cb972a8bd071e421c26a1
SH256 hash:
c8b06c70761caadc61d4c4eeeebec7a50cf782c89c250d4526f1b3d5e0e54db2
MD5 hash:
bcf9effe441c0a817b73595113ad079c
SHA1 hash:
6561a25b4c747f2521cec627d67c730a71e96468
Detections:
win_masslogger_w0
SH256 hash:
815f331a740693a74c0ca5a789eb62f54b6b6cabac98005eb0724bf3878cba2c
MD5 hash:
ff87e04dcad9b235b2efad6e4581a2a9
SHA1 hash:
c8006ff86b0bcbc52b9dd810a6b3b2b266587d8b
SH256 hash:
b5ac541a4baee69325c9f73ba6fe8e93d74fe3c302708373fab4fc0a55e3745b
MD5 hash:
f71192136c55245729661eb552eaaf37
SHA1 hash:
5fc3105a3a5346b76dd879f4af88d275376207c0
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | MassLogger |
|---|---|
| Author: | kevoreilly |
| Description: | MassLogger |
| Rule name: | masslogger_gcch |
|---|---|
| Author: | govcert_ch |
| Rule name: | Quasar_RAT_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | win_masslogger_w0 |
|---|---|
| Author: | govcert_ch |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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